Examinations the optical, mechanical, and shielding properties of Ag2O doped B2O3–Bi2O3–SrF2–Na2O glasses for gamma ray shield applications

Abstract

A series of five glass samples have a chemical composition of (55-x) B2O3 + 5 Bi2O3 + 20SrF2 + 20Na2O + xAg2O with varied doping ratios x = 0, 1, 2, 3, and 4 mol% were fabricated using the melt quenching technique to study the effect of B2O3 replacement by Ag2O on the physical, mechanical, optical and gamma-ray shielding capacity of the fabricated glasses. The Cary 5000 UV–Vis–NIR measured the optical absorption in the wavelength range between 200 and 3000 nm. Based on the measured optical absorption, energy (direct/indirect) bandgap and Urbach energy were calculated. Moreover, the measured samples density, molar volume, packing density, dissociation energy, and mechanical properties for the fabricated glasses were calculated using the concepts of the Makishima-Mackenzie model. In this regard, the microhardness was decreased from 4.070 to 3.931 GPa with raising the Ag2O concentration. The effect of B2O3 replacement on the shielding capacity was also evaluated using the Monte Carlo simulation. The simulation results showed that the replacement of B2O3 causes a significant increase in the shielding parameters like linear attenuation coefficient and radiation shielding capacity. The best radiation shielding properties were achieved for a glass sample with 4 mol% Ag2O compound. Its linear attenuation coefficient varied between 8.091 and 0.134 cm−1, raising the gamma photon energy between 0.059 and 2.506 MeV.

Tailoring the efficient laser‐absorption‐melting behavior of Bi2O3‐B2O3‐ZnO‐Nd2O3 glass for the OLED encapsulation

“…According to the Urbach rule to calculate the Urbach energy, the specific formula is as follows Equation () 29 : $$$$\begin{equation}\alpha \left( v \right)\; = \;\beta \exp (\frac{{hv}}{{\Delta E}})\end{equation}$$$$…”

“…According to the Urbach rule to calculate the Urbach energy, the specific formula is as follows Equation (3) 29 :…”

Luminescence characteristics of Dy3+ doped sodium alumina borate glass: Role of silver

“…Urbach energy is a measure of the width of localized states within the optical band gap. The higher values refer that glasses tend to convert weak bonds into defects, resulting in increased disorder and reduced stability and compactness of the samples [45,46]. As evident from table 3, the lowest ∆E of 0.42 eV belongs to H-0.5Dy1Ag glass indicating the stability and compactness of the sample.…”

Theoretical Investigation of the Influence of Different Heavy Metal Oxides Modifiers on ZnO-Bi2O3-B2O3-SiO2’s Photon- and Neutron-Shielding Capabilities Using the Monte Carlo Method

“…Researchers have been focusing on studies related to radiation shielding material, as radiation plays an essential part in medicine, for the sake of finding the most suitable materials for different applications. Glass has been considered an excellent radiation shield due to its properties [1,8,[11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28]. Many studies focused on investigating the capabilities of glass to shield against different radiation for many industrial and medical applications [1,8,[11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28].…”

“…Glass has been considered an excellent radiation shield due to its properties [1,8,[11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28]. Many studies focused on investigating the capabilities of glass to shield against different radiation for many industrial and medical applications [1,8,[11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28].…”